isci: convert power control timer to sci_timer

Signed-off-by: Edmund Nadolski <edmund.nadolski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h
index deb0ee03..2be935f 100644
--- a/drivers/scsi/isci/host.h
+++ b/drivers/scsi/isci/host.h
@@ -83,10 +83,9 @@
 	bool timer_started;
 
 	/**
-	 * This field is the handle to the driver timer object.  This timer is used to
-	 * control when the directed attached disks can consume power.
+	 * Timer to control when the directed attached disks can consume power.
 	 */
-	void *timer;
+	struct sci_timer timer;
 
 	/**
 	 * This field is used to keep track of how many phys are put into the